Sonoma County 13 hours ago Hall of Flowers cannabis festival open to the public One of the Bay Area’s most unique conventions returns this weekend with a new twist that’ll allow attendees to partake. US & World Videos 2:48 Cal Fire employee arrested for allegedly starting fires in the North Bay 0:26 Cal Fire employee arrested for allegedly starting small fires in the North Bay 0:43 Bomb threat closes schools in North Bay district 3:16 Firefighters work to contain destructive Lake County fire 2:23 Watch: Fire marshal provides update on Lake County wildfire